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Navigation method, global navigation satellite receiver and server

A technology of global navigation satellites and navigation methods, which is applied in navigation, surveying and navigation, satellite radio beacon positioning systems, etc., and can solve problems such as inability to obtain satellite signals and GNSS receiver position errors

Inactive Publication Date: 2009-06-03
BROADCOM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Use of this assistance data may result in satellite signals not being acquired, and / or significant errors in the calculated position of the GNSS receiver

Method used

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  • Navigation method, global navigation satellite receiver and server
  • Navigation method, global navigation satellite receiver and server
  • Navigation method, global navigation satellite receiver and server

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Embodiment Construction

[0070] FIG. 1 is a schematic structural diagram of a global navigation satellite system (GNSS) 100 according to a preferred embodiment of the present invention. GNSS 100 includes a plurality of satellites or constellation of satellites operable to transmit satellite signals, such as satellite 105; a GNSS receiver 104 for receiving satellite signals; and a server 102. The functions, procedures, components and other detailed features of satellite 105, GNSS receiver 104, server 102, GNSS 100 as a whole can be applied to any GNSS including, for example, Global Positioning System (GPS), GALILEO, GLONASS, SBAS (Star Based Augmentation System) , QZSS (Quasi-Zenith Satellite System), LAAS (Local Area Augmentation System), or some combination of the above.

[0071] GNSS receiver 104 may communicate with server 102 via a communication link. This communication link may be constructed by, for example, communication linking one or more nodes in a network, such as a wireless communication ...

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Abstract

The present invention relates to a navigation method, global navigation Satellite Receiver and server in global navigation satellite system, for monitoring a configuration of satellites to maintain integrity of LTO information in a GNSS receiver of a GNSS or other positioning system is described. The method may include obtaining broadcast ephemeris transmitted from at least one satellite of a constellation of satellites; comparing the broadcast ephemeris to long-term-orbit information available to a global-navigation-satellite receiver; and causing the global-navigation-satellite receiver to not use the long-term-orbit information when the long-term-orbit information does not correspond to the broadcast ephemeris.

Description

technical field [0001] The present invention relates to positioning systems, and more particularly, the present invention relates to background decoding of one or more satellite navigation messages to maintain the integrity of satellite navigation data applied to global navigation satellite systems. Background technique [0002] A Global Navigation Satellite System (GNSS) receiver needs to use satellite navigation data, such as satellite orbits and clock models, to calculate the distance to each of several satellites, which is then used to calculate the position of the GNSS receiver. The distance is calculated by calculating the delay in the time from the transmission of a satellite signal from a satellite visible from the GNSS receiver's perspective to the reception of the satellite signal by the GNSS receiver on or near the Earth's surface. This time delay multiplied by the speed of light yields the distance from the GNSS receiver to each satellite in view. [0003] In so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S1/02G01S5/02G01S19/04G01S19/07G01S19/11G01S19/27G01S19/48
CPCG01S19/254G01S19/258G01S19/27G01S19/05G01C21/00G01S19/08
Inventor 弗兰克·范迪格伦马太·里本
Owner BROADCOM CORP